Sofa-bed and sofa-bed conversion

ABSTRACT

Aspects of the present disclosure generally pertain to a sofa-bed. Aspects of the present disclosure are more specifically directed toward a sofa-bed having a mattress support that nests within itself when stowed. Aspects of the present disclosure are further directed toward retrofitting or otherwise converting a traditional lift out sofa-bed into a lift out sofa-bed.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to U.S. provisional patent application 63/350,282 filed Jun. 8, 2022 and entitled SOFA-BED AND SOFA-BED CONVERSION, the contents of all of which are incorporated herein by reference in their entirety.

BACKGROUND OF THE INVENTION Technical Field

The present disclosure generally pertains to multifunctional furniture, and is more particularly directed towards convertible beds.

Related Art

Generally, a convertible bed may be converted between a piece of seating furniture to a piece of sleeping/laying furniture. For example, a sofa-bed (FIG. 7A) is a multifunctional piece of furniture typically consisting of a sofa that hides a deployable metal bed frame and thin mattress underneath its seating cushions (see FIG. 7B). The metal frame is lifted out to make a bed with the thin mattress on top. Drawbacks of metal frame sofa beds include weight, cost, discomfort, complexity of use, and lack of repairability, among others.

Also for example, a daybed typically includes a seating area, and also includes a separate bed that can be pulled out from underneath the seating area for use as a bed. While generally simple in design, day beds typically require either a high seating area or a low sleeping area, and are limited to a single, individual sized mattress or two individual sized mattress side-by side at different heights.

Also for example, a futon style convertible bed typically utilizes both slatted seat and back frames as the bed frame, and a thin pad that is operable as both seat pads and a mattress. In particular, the futon operates as a couch when the seat and back frames are oriented roughly 90 degrees to each other, and as a bed when the seat and back frames are oriented 180 degrees to each other. One drawback of futons is that the couch back is not available as a head board once the futon is in its deployed state.

Conventional sofa-bed products typically have a convertible mechanism that is made of a metal framework that lifts up and out to switch the item from a sofa to a bed. The design of this mechanism has a transversal metal frame that creates a tent-like shape in the mattress, making the bed uncomfortable as the mattress wears. When the mechanism is operated frequently and due to its current design, it is prone to issues like damaged metal parts, bent frames or joints that might sag. Some of the problems with the current mechanism design are not repairable and the only solution is to replace the entire mechanism, and oftentimes it is more cost effective to throw away the entire sofa-bed and buy another. This is highly undesirable as large pieces of furniture such as sofa-beds are typically very costly. In fact, once the bed function has failed, a sofa-bed may end up as merely a couch.

U.S. Pat. No. 10,231,553 to Gregory, et al. on Mar. 19, 2019, shows a convertible bed. The convertible bed is disclosed as a bed convertible between a sofa configuration and a bed configuration. The bed includes a stationary bed support assembly having a stationary bed frame, a back rail, a front rail, and a plurality of slats adapted to support a mattress and a movable bed support assembly having a movable bed frame, a back rail, a front rail and a plurality of slats adapted to support a mattress. Each slat is supported at each end point. In one embodiment, a storage compartment is located underneath the stationary bed support assembly and the movable bed support assembly. Also, a backrest may be attached to the back rail of the stationary bed support assembly, whereby the backrest is adapted to support a user's back when the bed is in the sofa configuration.

U.S. Pat. No. 10,231,553 to Schimmelpfeng on Jul. 22, 2014, shows a sliding and expanding sofa and seat frame. The sliding and expanding sofa and seat frame is disclosed as an extendable system for sofas and armchairs that uses a moveable seat and moveable head piece to travel along a curved head piece and stationary base. Frame members of the moveable seat and stationary base use a system of rails, ruler guides, notches and other wood components to facilitate the fluid movement and safe locking of the moving and stationary components.

There is a need for a sturdy sofa-bed with reduced complexity, improved comfort, and ease of repair. Moreover, there is need for the dynamic features (i.e., the convertible mechanism) of a sofa-bed to last as long as the static features (e.g., sofa frame, mattress, cushions, etc.) or at least be repairable at a reasonable cost. Further, there is a need to provide the same or similar benefits to existing furniture (e.g., traditional sofa-bed, couch, etc.) without having to dispose of an otherwise serviceable piece of furniture. The present disclosure is directed toward overcoming known problems and problems discovered by the inventor.

SUMMARY

Aspects of the present disclosure generally pertain to a sofa-bed. Aspects of the present disclosure are more specifically directed toward a sofa-bed having a mattress support that nests within itself when stowed. Aspects of the present disclosure are further directed toward retrofitting or otherwise converting a traditional lift out sofa-bed into a hybrid pull out sofa-bed.

A sofa-bed that is convertible between a bed configuration when in a deployed state and a sofa configuration when in a stowed state is disclosed here. The sofa-bed includes a mattress, a sofa frame having a back base, a front base, a left side, and a right side, a fixed base affixed to the sofa frame, and a traveling base dynamically coupled to the fixed base so as to be manually moveable between a stowed position and a deployed position. The fixed base includes a plurality of fixed support members (314) distributed between the left and right sides of the sofa frame, and a plurality of fixed support legs coupled to and extending downward from the plurality of fixed support members. Each of the plurality of fixed support members is configured to support at least a portion of the mattress, and each of the plurality of fixed support legs is configured to interface with a floor and support at least one of the plurality of fixed support members. The traveling base includes a plurality of traveling support members distributed between the left and right sides of the sofa frame and interleaved with the plurality of fixed support members, and a plurality of traveling support legs coupled to and extending downward from the plurality of traveling support members. Each of the plurality of traveling support members is configured to support at least another portion of the mattress, and each of the plurality of traveling support legs is configured to interface with a floor and support at least one of the plurality of traveling support members.

According to one embodiment, a sofa-bed convertible between a bed configuration when in a deployed state and a sofa configuration when in a stowed state is disclosed here. The sofa-bed includes a mattress, a sofa frame having a back base, a front base, a left side, and a right side, a fixed base affixed to the sofa frame, and a traveling base dynamically coupled to the fixed base so as to be manually moveable between a stowed position and a deployed position relative to the fixed base.

The fixed base includes a plurality of fixed support members distributed between the left and right sides of the sofa frame, where each of the plurality of fixed support members including a fixed support beam and at least one fixed support leg. Each fixed support beam is configured to support at least a portion of the mattress. Each fixed support leg is coupled to and extends downward from its fixed support beam, where the fixed support leg is configured to interface with the floor and support its fixed support beam.

The traveling base includes a plurality of traveling support members distributed between the left and right sides of the sofa frame and are interleaved with the plurality of fixed support members, where each of the plurality of traveling support members includes a traveling support beam and at least one traveling support leg. Each traveling support beam is configured to support at least another portion of the mattress (i.e., distinguished from the portions of the fixed base). Each traveling support leg is coupled to and extends downward from its traveling support beam, where the traveling support leg is configured to interface with the floor and support its traveling support beam.

According to another embodiment, a convertible platform for a sofa-bed having a front, a back, a left side, and a right side is disclosed here. The convertible platform has a deployed state corresponding to the sofa-bed in a bed configuration, and has a stowed state corresponding to the sofa-bed in a sofa configuration. The convertible platform includes a fixed base and a traveling base dynamically coupled to the fixed base so as to be manually moveable between a stowed position and a deployed position relative to the fixed base,

The fixed base includes a frame back and a plurality of fixed support members distributed between the left and right sides of the convertible platform and fixed to the frame back. Each fixed support members includes a fixed support beam and at least one fixed support leg, where the fixed support beam is configured to support at least a portion of the mattress, and where each fixed support leg is coupled to and extends downward from the fixed support beam, each fixed support leg is configured to interface with the floor and to support its fixed support beam.

The traveling base includes a frame front and a plurality of traveling support members distributed between the left and right sides of the sofa frame, interleaved with the plurality of fixed support members, and fixed to the frame front. The frame front is configured for a user to manually move the traveling base between the stowed position and the deployed position. Each traveling support member includes a traveling support beam and at least one traveling support leg, where traveling support beam is configured to support at least another portion of the mattress (i.e., distinguished from the portions of the fixed base). Each traveling support leg is coupled to and extends downward from its traveling support beam, where the traveling support leg is configured to interface with the floor and support its traveling support beam.

According to one embodiment, a method for converting a lift out sofa-bed into a slide out sofa-bed that is convertible between a bed configuration when in a deployed state and a sofa configuration when in a stowed state is disclosed here. The method includes the steps of providing a lift out sofa-bed including a sofa frame, a lift out bed frame mechanism coupled to the sofa frame, and a first mattress having a first standard size, where the sofa frame has a back base, a front base, a left side, and a right side coupled together; removing the lift out bed frame mechanism from the lift out sofa-bed; separating the front base from the left side and the right side of the sofa frame; providing the convertible platform described above; attaching the front base of the sofa frame to the frame front of the traveling base such that the user can manually move the traveling base between the stowed position and the deployed position by sliding out said front base; and attaching the back base, the left side, and the right side of the sofa frame to fixed base such that they remain in a fixed position relative to the fixed base when the traveling base slides forward and backward between the between the stowed position and the deployed position.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is perspective view of a sofa-bed in a stowed state, according to one embodiment of the present disclosure.

FIG. 1B is perspective view of the sofa-bed of FIG. 1A, showing its cushions removed and exposing a mattress, according to one embodiment of the present disclosure.

FIG. 1C is perspective view of the sofa-bed of FIG. 1A, in a partially deployed state, according to one embodiment of the present disclosure.

FIG. 1D is perspective view of the sofa-bed of FIG. 1A, in a deployed state, according to one embodiment of the present disclosure.

FIG. 2A is schematic diagram showing a top view of a sofa-bed in a stowed state, according to one embodiment of the present disclosure.

FIG. 2B is schematic diagram of the sofa-bed of FIG. 2A, showing a top view of the sofa-bed in a deployed state, according to one embodiment of the present disclosure.

FIG. 3A is schematic diagram detail of a sofa-bed in a stowed state, showing a top view of a convertible platform of the sofa-bed, according to one embodiment of the present disclosure.

FIG. 3B is detail perspective view of a sofa-bed in a partially deployed state, showing a convertible platform of the sofa-bed, according to one embodiment of the present disclosure.

FIG. 3C is schematic diagram detail of the sofa-bed of FIG. 3A, showing a top view of the convertible platform of the sofa-bed in a deployed state, according to one embodiment of the present disclosure.

FIG. 4A is detail perspective view of a sofa-bed in a deployed state, showing a fixed base of the convertible platform, according to one embodiment of the present disclosure.

FIG. 4B is schematic diagram detail of a sofa-bed, showing a top view of a fixed base of the convertible platform, according to one embodiment of the present disclosure.

FIG. 4C shows a front perspective view of a frame back, according to one embodiment of the present disclosure.

FIG. 4D shows a side perspective view of a fixed support member, according to one embodiment of the present disclosure.

FIG. 4E is bottom perspective view of a support member including a screw sleeve for manual height adjustment, according to one embodiment of the present disclosure.

FIG. 4F shows a side perspective view of a frame side mount, according to one embodiment of the present disclosure.

FIG. 5A is schematic diagram detail of a sofa-bed, showing a top view of a traveling base of the convertible platform, according to one embodiment of the present disclosure.

FIG. 5B is front perspective view of a frame front, according to one embodiment of the present disclosure.

FIG. 5C shows a side perspective view of a traveling support member, according to one embodiment of the present disclosure.

FIG. 6A is perspective view of a sofa-bed in its stowed state, showing its mattress removed, according to one embodiment of the present disclosure.

FIG. 6B is schematic diagram of the sofa-bed of FIG. 3A, showing a top view of the sofa-bed in a stowed state, according to one embodiment of the present disclosure.

FIG. 7A is perspective view of a traditional lift out sofa-bed in a stowed state.

FIG. 7B is perspective view of a traditional lift out sofa-bed in a deployed state.

FIG. 7C is perspective view of a traditional lift out sofa-bed with its deployable metal bed frame and thin mattress removed.

DETAILED DESCRIPTION

The present disclosure generally pertains to convertible beds. Aspects of the present disclosure pertain to a sofa-bed. Aspects of the present disclosure are more specifically directed toward a sofa-bed having a mattress support that nests within itself when stowed. Aspects of the present disclosure are further directed toward retrofitting or otherwise converting a traditional “lift out” sofa-bed into a hybrid “pull out” or slide out sofa-bed.

FIG. 1A is perspective view of a sofa-bed in a stowed state, according to one embodiment of the present disclosure. As shown, in this state, the sofa-bed 100 appears the same as a traditional sofa-bed 10 (see FIG. 7A) or an ordinary sofa. In particular, the sofa-bed 100 may include a sofa frame 200 and one or more seating cushions 500. Likewise, the sofa frame 200 may generally include a back base 202 (e.g., including a padded back or other back rest), a left side 204, a right side 206, and a front base 208. It is understood that many design choices and styles may be applied to this basic framework disclosed herein.

FIG. 1B is perspective view of the sofa-bed of FIG. 1A, showing its cushions removed and exposing a mattress, according to one embodiment of the present disclosure. As shown, the sofa-bed 100 may further include a mattress 400. The mattress 400 may be a single folded mattress (not shown) or separate mattress elements that may be assembled or positioned when the sofa-bed 100 is in its deployed state. Further, the mattress 400 may include separate mattress elements where at least two are coupled together (e.g., via straps, strips, and the like), so as to provide improved foldability when stowed, and continuity and alignment when deployed.

According to one embodiment, the sofa-bed 100 may be configured such that the mattress 400 rests immediately underneath the seating cushions 500 when the sofa-bed 100 is in its stowed state. Alternately, the sofa-bed 100 may be configured such that the mattress 400 is removed (and put away) when the sofa-bed 100 is in its stowed state. For example, the mattress 400 may be stored remotely from the sofa-bed 100. Alternately, the mattress 400 may be stored within the sofa-bed 100, for example, within the sofa frame 200 but isolated from the seating cushions 500.

According to one embodiment, and as discussed below, the sofa-bed 100 may be a converted traditional sofa-bed, and the mattress 400 may be rotated 90 degrees from the mattress of the traditional sofa-bed. In particular, where the mattress of the traditional sofa-bed was a first, “larger” size (e.g., queen size) oriented such that its longitudinal dimension runs backward to forward, relative to the sofa, the mattress 400 of the sofa-bed 100 may be a smaller size (e.g., full size) rotated such that its longitudinal dimension runs right side to left side, relative to the sofa. Beneficially, this overall reduction may provide for greater comfort, via use of a thicker mattress. Alternately, this overall reduction may provide for a reduced “footprint” when deployed.

FIG. 1C is perspective view of the sofa-bed of FIG. 1A, in a partially deployed state, according to one embodiment of the present disclosure. FIG. 1D is perspective view of the sofa-bed of FIG. 1A, in a deployed state, according to one embodiment of the present disclosure. As shown, the sofa-bed 100 may further include a convertible platform 300 coupled to the sofa frame 200. In particular, the convertible platform 300 may be converted between a bed frame and a couch seat support. As discussed below, the convertible platform 300 may slide between its stowed state (i.e., where the sofa-bed 100 configured as a sofa) and its deployed state (i.e., where the sofa-bed 100 configured as a bed).

FIG. 2A is schematic diagram showing a top view of a sofa-bed in a stowed state, according to one embodiment of the present disclosure. Here, according to one embodiment, the convertible platform 300 (and thus the sofa frame 200) may be sized and dimensioned as standard three-seat sofa when the convertible platform 300 is collapsed in the stowed configuration. For example, the convertible platform 300 (and thus the sofa frame 200) may have a seating area of approximately 72-87 inches length (e.g., platform length 302) by 34-44 inches depth (e.g., stowed depth 304). Also for example, the convertible platform 300 (and thus the sofa frame 200) may have a mattress support area of approximately 66 inches length by 32 inches depth—when stowed.

FIG. 2B is schematic diagram of the sofa-bed of FIG. 2A, showing a top view of the sofa-bed in a deployed state, according to one embodiment of the present disclosure. Here, the convertible platform 300 may be sized and dimensioned to support a standard full size mattress when the convertible platform 300 is extended in the deployed state. For example, the convertible platform 300 may have a mattress support area of approximately 75 inches length (i.e., platform length 302) by 54 inches width (i.e., stowed depth 304 plus extension distance 306)—when deployed. It is understood that the abovementioned dimensions are for reference, and that other dimensions contemplated.

According to one embodiment, and as discussed further below, the convertible platform 300 may be configured to substantially cover or otherwise support the entire area within its footprint when stowed, and thus approximately half of its entire area when deployed. In other words, the convertible platform 300 may include mattress support underneath approximately half of the mattress' footprint when deployed as a bed. Beneficially, and unlike traditional metal sofa-bed frames (which only provide sparsely populated bars as mattress under support) this density of mattress under support may beneficially provide for the use of a more flexible/comfortable and less structurally rigid/stiff mattress.

According to one embodiment, the mattress 400 may be made of flexible material, such as memory foam and the like. For example, the mattress 400 may be made of a 4 inch thick layer of memory foam. As above, the mattress under support density of may provide for the use of the flexible material, which would otherwise sag in a traditional metal sofa-bed frame.

According to one embodiment, the flexible mattress material (e.g., memory foam) may be divided into sections that can be stacked on top of each other, stored away from the sofa-bed 100, or a combination thereof. For example, the mattress 400 may be made of two half-length memory foam strips 410 (e.g., 30″×66″) that are stacked on top of one another. Also for example, the mattress 400 may be made of two half-length memory foam strips 410 (e.g., 30″×66″) that are sewn together or otherwise coupled (e.g., along a longitudinal centerline) and folded over each other along their respective couple. Also for example, the mattress 400 may be made of one half-length memory foam strip (e.g., 32″×66″) to be left underneath the seating cushions 500 when stowed, and two quarter pads 420 (e.g., 20″×33″) that are sewn together or otherwise coupled, to be conveniently stored remotely, for example, in a closet, behind the sofa-bed 100, underneath the convertible platform 300, etc.

According to one preferred embodiment, each memory foam mattress section may be approximately 4 inches thick. According to one embodiment, the mattress 400 may include two 32″×66″ memory foam mattress sections (half-length strips 410) that are approximately 4½″ thick, and configured to be stackably stored underneath the seating cushions 500 when stowed. It is understood that the abovementioned dimensions are for reference, and that other dimensions contemplated.

FIG. 3A is schematic diagram detail of a sofa-bed in a stowed state, showing a top view of a convertible platform of the sofa-bed, according to one embodiment of the present disclosure. FIG. 3B is detail perspective view of a sofa-bed in a partially deployed state, showing a convertible platform of the sofa-bed, according to one embodiment of the present disclosure. FIG. 3C is schematic diagram detail of the sofa-bed of FIG. 3A, showing a top view of the convertible platform of the sofa-bed in a deployed state, according to one embodiment of the present disclosure. As above, the sofa-bed 100 may include the convertible platform 300 coupled to the sofa frame 200. Also as above, the convertible platform 300 may be configured to substantially cover/include or otherwise support the entire area within a “cushion footprint” when stowed, and thus approximately half of an entire “mattress footprint” when deployed. Thus the two weight carrying bases may interleave/interlock in a stowed state, forming a sofa, and may be generally separated from each other when a traveling base pulled out of a fixed base in a deployed state.

As illustrated, the convertible platform 300 may generally include a fixed base 310 and a traveling base 320. The fixed base 310 may be affixed or otherwise anchored to the sofa frame 200. For example, portions of the fixed base 310 may be conventionally mounted to the sofa frame 200 (e.g., via fasteners, adhesive, locks, etc.). Further, the traveling base 320 may be sufficiently unconstrained to be free to slide forward and away from the fixed base 310. In particular, and as shown, the traveling base 320 may be slidably/dynamically coupled to the to the fixed base 310. For example, the traveling base 320 may be constrained from side-to-side movement by mating or otherwise adjacent portions of the fixed base 310, while having freedom along a forward-backward axis, between its stowed and deployed positions (i.e., corresponding to the couch and bed configurations of the sofa-bed 100, respectively). Preferably, the mattress support members of the fixed base 310 and the traveling base 320 will interleave when stowed. According to one embodiment, the convertible platform 300 (and the sofa-bed 100) may alternate between its stowed state and its deployed state via manually sliding the traveling base 320 into and out of the sofa frame 200. For example a user may pull and push a forward portion of the travelling base 320 to move it between its stowed position and its deployed position.

Preferably, and as discussed further below, the fixed base 310 and the traveling base 320 may each be generally configured to directly, and independently, support user weight in both the stowed state and the deployed state. In other words, and as described below, each segment (i.e., the fixed base 310 and the traveling base 320) may be configured to support user weight independently of, and/or in conjunction with the sofa frame 200 or elements thereof. For example, and as shown, each of the fixed base 310 and the traveling base 320 may include its own direct support (e.g., leg) to interface with the ground. Further, this direct support may be located, for example, at an endpoint and/or an intermediate length position (front-back axis) of each support member—discussed further below. This is contrasted with merely being supported by the sofa frame 200 at each support member's end points. Beneficially, this may provide for use of thinner, less expensive support beams/slats.

The convertible platform 300 may be coupled or otherwise affixed to the sofa frame 200. In particular, and as discussed further below, the fixed base 310 of the convertible platform 300 may be anchored to at least a portion of the back base 202 and/or to the left side 204 and the right side 206 of the sofa frame 200. Likewise, the front base 208 (or a severed portion thereof) may be affixed to or integrated with the traveling base 320 of the convertible platform 300.

For reference, FIG. 7A is perspective view of a traditional lift out sofa-bed in a stowed state. Likewise, FIG. 7B is perspective view of a traditional lift out sofa-bed in a deployed state. Generally, a lift out sofa-bed (“traditional sofa-bed” 10) is based on a convertible platform that uses two weight carrying bases (deployable metal bed frame 30) that foldably collapse into each other, and include a thin mattress 40 that folds upon itself. In particular, the deployable metal bed frame 30 include mechanical a linkage system made of metal that bolts on or into the sofa frame 20.

According to one embodiment, the sofa-bed 100 may be a retrofitted or otherwise converted traditional sofa-bed 10. In particular, the lift out metal bed frame mechanism 30 of the traditional sofa-bed 10 may be unbolted or otherwise removed from its sofa frame 200, and replaced with the presently disclosed convertible platform 300 (FIG. 3C).

For reference, FIG. 7C is perspective view of a traditional lift out sofa-bed with its deployable metal bed frame and thin mattress removed. In particular, the traditional sofa-bed 10 may become the disclosed sofa-bed 100 once the convertible platform 300 (not shown) is installed into the sofa frame 200. According to one embodiment, once the deployable metal bed frame 30 is removed from the traditional sofa 10, it may bed be further converted by cutting or otherwise decoupling at least a portion of the front base 208 from the left side 204 and the right side 206 of the sofa frame 200, and the disclosed dynamic portion (i.e., the convertible platform 300) may then be installed as indicated herein, thus transforming the traditional sofa-bed 10 to the disclosed sofa-bed 100.

According to one embodiment, at least a portion of the sofa frame's front base 208 may be cut from or otherwise decoupled from its left side 204 and its right side 206, and/or other parts of the sofa frame 200. Then, the decoupled front base 208 may be mounted to, and thus form part of, the convertible platform 300. Finally, the disclosed dynamic portion (i.e., the convertible platform 300) may be installed into the sofa frame 200, as discussed herein. According to one embodiment, similar or analogous steps may be taken to transform a static piece of furniture (e.g., a sofa) to a bed.

Beneficially, by retrofitting or otherwise converting the traditional sofa-bed 10 to the current “slide-out” sofa-bed 100, the dynamic motion is simplified and the previous “lift-out” design may be replaced with traditional furniture materials (e.g., wood vs metal) that are lighter, more robust and less prone to damage or bending, potentially extending the furniture's useful life. Further, this version may be easier to operate, as there is no lifting required as this mechanism slides out instead of having to life it up and out, while going against springs and levers. In addition, the conversion may include converting the traditional sofa-bed from a first size/orientation (e.g., queen size bed oriented forward-to-back) to a second size/orientation (e.g., full size bed oriented left-to-right). Finally, and as described below, the retrofit may provide for a more comfortable experience by both distributing the mattress support area and by making softer/less-rigid mattresses an available option.

FIG. 4A is detail perspective view of a sofa-bed in a deployed state, showing a fixed base of the convertible platform, according to one embodiment of the present disclosure. FIG. 4B is schematic diagram detail of a sofa-bed, showing a top view of a fixed base of the convertible platform, according to one embodiment of the present disclosure. As above, the convertible platform 300 may include the fixed base 310 anchored to the sofa frame 200 and configured to directly support user weight (e.g. via the mattress 400). As illustrated, the fixed base 310 may generally include a frame back 312 and a plurality of fixed support members 314 coupled to the frame back 312, at their aft end, respectively. Here and throughout, the various coupled members may be coupled using any appropriate coupling (e.g., metal fasteners, wood interlocks, bonding, etc.), as furniture couplings are well-known. For example, according to one preferred embodiment, the plurality of fixed support members 314 may be mechanically coupled to the frame back 312 with fasteners 313 (e.g., wood screws, threaded studs, etc.).

FIG. 4C shows a front perspective view of a frame back, according to one embodiment of the present disclosure. The frame back 312 may be configured to join the plurality of fixed support members 314 together, and to couple them to the sofa frame 200. In particular, the frame back 312 may be attached to the back portion of the sofa frame 200. For example, the frame back 312 may be embodied as a structural beam, sized and dimensioned to extend substantially the length of the fixed base 310 (e.g., platform length 302), and of sufficient strength to structurally anchor the plurality of fixed support members 314 to the back base 202 of the sofa frame 200. Further, and as shown, the frame back 312 may be further configured to provide support in the vertical direction.

Preferably, the frame back 312 will be made of wood or other furniture-suitable material. Further, the frame back 312 may be wood beam having a length 305 fb on the order of the platform length 302 of the convertible platform 300 or the length of the mattress 400 (e.g., approximately 66 inches in length 305 fb), and having a cross section on the order of 4 inches in height 301 fb and ¾ inch in width 303 fb. According to one embodiment, the frame back 312 may be wood beam having a length 305 fb of 66½″, a height 301 fb of 3″, and a thickness or width 303 fb of ¾″, which is ultimately attached to the back portion of the sofa frame 200 with screws, for example. It is understood that the cross section may vary, depending on the material used.

FIG. 4D shows a side perspective view of a fixed support member a fixed support member, according to one embodiment of the present disclosure. Each of the plurality of fixed support members 314 may be configured to directly and independently support the mattress/user above the floor, and to mount or otherwise couple to the frame back 312. In particular, the fixed support member 314 may include a fixed support beam 315 coupled to at least one fixed support leg 317. Preferably, the fixed support beam 315 and the fixed support leg 317 will be made of wood or other furniture suitable material. Further, each fixed support member 314 will preferably be interchangeable.

Structurally, the fixed support beam 315 may be a load bearing beam or slat sized and dimensioned to extend, on the order of, half the width of the mattress 400 (e.g., the beam having a length 305 fsb on the order of or approximately the stowed depth 304—approximately 32 inches), and of sufficient strength to support the user, while maximizing surface area in contact with the mattress 400 (e.g., a wood beam having a cross section of approximately 1.5 inches in height 301 fsb and 2 inches in width 303 fsb). According to one embodiment, the fixed support beam 315 may be a wood beam having a length 305 fsb of 31½″, a height 301 fsb of 1½″, and a width 303 fsb or thickness of 2″, which is attached to the frame back 312 (FIG. 4B) with threaded fasteners 313 (e.g., screws).

The fixed support leg 317 may extend downward from the fixed support beam 315 to the floor. Preferably, the fixed support member 314 may include two fixed support legs 317 distributed along the fixed support beam 315. According to one embodiment, one fixed support leg 317 may be located proximate a forward end of the fixed support beam 315 and the other fixed support leg 317 located aft of a mid-length of the fixed support beam 315, as shown, thus distributing load support.

According to a preferred embodiment, the fixed support leg 317 may be adjustable in height. In particular, the fixed support leg 317 may be a wood block that includes an adjustable foot 311, such as a leveling foot. For example, and as shown, the wood block portion of the fixed support leg 317 may be fixed to the underside of the fixed support beam 315, and the leveling foot (adjustable foot 311) may screw into the bottom of the wood block. According to one embodiment, the wood block of the fixed support leg 317 may have a width 303 f 1 no wider than the fixed support beam 315 (e.g., 1.5 inches), a height 301 f 1 that extends the majority of the distance to the floor (e.g., approximately 4 inches), and a length 305 f 1 on the order of 4 inches, while the adjustable foot 311 extends from the wood block to the floor. Beneficially, this arrangement may provide for reduced cost, as well as greater stability and durability.

The adjustable foot 311 may have a travel distance that covers, at a minimum, any foreseeable installation tolerances, floor variations, plus an ergonometric space for manual adjustments. For example, the leveling foot may extend from the wood block from a minimum of flush to at least one inch away (e.g., downward) from the block. Alternately, the adjustable foot 311 may have a greater range, which provides for a range of bed heights that are comfortable, or for which a user may desire (e.g., adjustable for “extra high” beds).

According to one embodiment, the fixed support leg 317 may include a screw sleeve 309 installed into the wood block (see FIG. 4E). In particular, the screw sleeve may be embedded into the wood block using conventional carpentry techniques. Beneficially, this may provide for easier adjustment and decreased wear.

According to one embodiment, the fixed support member 314 may further include a back reinforcement 319 configured to provide horizontal coupling to the frame back 312 at its aft end, as well as vertical support to the fixed support beam 315 at its aft end. In particular, the back reinforcement 319 may be a structural member configured to transfer vertical loading between the frame back 312 and the fixed support beam 315. The structural member may be fixed to the underside of the fixed support beam 315 at its aft end. For example, the back reinforcement 319 may be a wood block, a bracket, or any other appropriate structure.

According to one embodiment, the back reinforcement 319, may be a wood block sized and dimensioned smaller than the wood block of the fixed support leg 317. For example, the back reinforcement 319 may include a wood block fixed (e.g. glued) to the underside of the fixed support beam 315, having a width no wider than the fixed support beam 315 (e.g., 1.5 inches), a height 301 br of approximately 3 inches, and a length 305 br of approximately 2 inches.

According to one preferred embodiment, the fixed support member 314 may be mechanically coupled to the frame back 312 with fasteners 313 (e.g., threaded studs, wood screws etc.), for example at both the back reinforcement 319 and the fixed support beam 315. As mentioned above, the various coupled members may be coupled using any appropriate coupling (e.g., metal fasteners, wood interlocks, glue, etc.) or combination of coupling techniques.

FIG. 4F is detail perspective view of a fixed base, showing a frame side mount, according to one embodiment of the present disclosure. As above, the convertible platform 300 may include the fixed base 310 anchored to the sofa frame 200. According to one embodiment, the fixed base 310 may be configured to structurally anchor to each side of the sofa frame 200. Further, this may be in addition to anchoring to the back of the sofa frame 200 via the frame back 312. In particular, the fixed base 310 may further include pair of side frame mounts 316 configured to couple to the left side 204 and the right side 206 of the sofa frame 200, respectively, and to the frame back 312 at their aft end, respectively.

According to one embodiment, each side frame mount 316 may be embodied as a structural beam sized and dimensioned to extend the majority of forward-aft length of the left side 204 and the right side 206 of the sofa frame 200, respectively, and be of sufficient strength to structurally anchor the convertible platform 300 to the sofa frame 200. Preferably, each side frame mount 316 will be made of wood or other furniture suitable material.

Each side frame mount 316 may be may include a side beam 318 conveniently sized and dimensioned similar to the fixed support beam 315 (e.g., to extend on the order of half the width of the mattress 400). Beneficially, the side beam 318 may then be made from the fixed support beam 315, improving manufacture efficiency. According to one embodiment, the side beam 318 may have a length on the order of approximately 32 inches) and a cross section of 1.5 inches high and 2 inches wide. It is understood that the cross section may vary, depending on the material used. According to one embodiment, the side beam 318 may be a wood beam having a length of 31½″, a height 301 sb of 1½″, and a width 303 sb of 2″ that is attached to the frame back 312 with fasteners 313 (e.g., threaded studs, wood screws etc.), for example.

As above, each side frame mount 316 may be may further include a back reinforcement, configured to provide additional vertical support to the side frame mount 316, at its aft end. In particular, the back reinforcement may be a structural member configured to transfer vertical loading between the frame back 312 and the side beam 318. As with the back reinforcement 319 of the fixed support beam 315, this structural member may be fixed to the underside of the side beam 318 at its aft end. For example, the back reinforcement may similarly be a wood block, a bracket, or any other appropriate structure.

Preferably, the back reinforcement of the side beam 318 will be the same or similar to the back reinforcement 319 of the fixed support beam 315. For example, here, each side frame mount 316 may include a back reinforcement 319 having a width no wider than the side beam 318 (e.g., 1.5 inches), a height 301 br of approximately 3 inches, and a length 305 br of approximately 2 inches. Likewise, according to one preferred embodiment, the side frame mount 316 may be mechanically coupled to the frame back 312 (e.g., with fasteners 313), for example at both the back reinforcement 319 and the side beam 318.

According to one embodiment, the side frame mount 316 may be configured to mount flush against each side of the sofa frame 200. In particular, the side frame mount 316 may be coupled to the sofa frame 200 without obstructions such as bolt heads extending beyond the side beam 318. For example, the side frame mount 316 may be coupled to the sofa frame 200 with an adhesive. Also for example, and preferably, the side beam 318 of may include a plurality of recessed mounting holes (e.g., ¼ inch deep and 1 inch diameter), as illustrated, which are made to mechanically attach the side frame mount 316 to the sofa frame 200 while hiding the fastener head. Beneficially, in this way, the interleaved support members of the traveling base 320 on the left and right sides can be more tightly tolerance, providing greater support.

FIG. 5A is schematic diagram detail of a sofa-bed, showing a top view of a traveling base of the convertible platform, according to one embodiment of the present disclosure. As above, the convertible platform 300 may include the fixed base 310 anchored to the sofa frame 200, and the traveling base 320 dynamically coupled to the fixed base 310 while sufficiently unconstrained to be free to slide forward and away from the fixed base 310, and vis versa. Further, like the fixed base 310, the traveling base 320 may be configured together to directly support user weight. As illustrated, the traveling base 320 may include a frame front 322 and a plurality of traveling support members 324 coupled to the frame front 322 at their forward end, respectively. As mentioned above, the various coupled members may be coupled using any appropriate coupling, as furniture couplings are well-known. For example, according to one preferred embodiment, the plurality of traveling support members 324 may be mechanically coupled to the frame front 322 with fasteners 313 (FIG. 5C).

FIG. 5B is front perspective view of a frame front, according to one embodiment of the present disclosure. The frame front 322 may be configured to join the plurality of traveling support members 324 together, similar to the frame back 312. In particular, the frame front 322 may be embodied as a structural beam, sized and dimensioned to extend the length of the traveling base 320, and have sufficient structural strength and coupling to repeatedly pull out the plurality of traveling support members 324 from the fixed base 310 as a single unit (i.e., the traveling base 320), as well as return them.

The frame back 312 may be configured to couple them to the sofa frame 200.

In particular, the frame back 312 may be attached to the back portion of the sofa frame 200. Further, and as shown, the frame back 312 may be further configured to provide support in the vertical direction.

Preferably, the frame front 322 will be made of wood or other furniture-suitable material. Further, the frame front 322 may be wood beam having a length 305 ff on the order of the length 305 ff of the frame back 312 (e.g., approximately 66 inches). However, unlike the frame back 312, the frame front 322 may have a greater cross section, for example, on the order of 6 inches in height 301 ff and ¾ inch in width 303 fb. In this way the frame front 322 may be configured as or otherwise function as the front base 208 of the sofa frame 200 It is understood that the cross section may vary, depending on the material used and the dynamic nature of the of the traveling base 320.

According to one embodiment, and as above, the frame front 322 may be finished or otherwise configured to serve as the front base 208 of the sofa frame 200. For example, the frame front 322 may be integrated into or otherwise be attached to a front portion of the sofa frame 200. According to another embodiment, the front base 208 of the sofa frame 200 may be supported by or otherwise coupled to the frame front 322 of the traveling base 320, particularly, where the sofa-bed 100 is a refitted traditional lift-out sofa-bed.

FIG. 5C shows a side perspective view of a traveling support member, according to one embodiment of the present disclosure. Each of the plurality of traveling support members 324 may be configured to support the user, to couple to the frame front 322, and to freely slide forward and away from the fixed base 310 together with the frame front 322 as a single unit. In particular, the traveling support member 324 may include a traveling support beam 325 coupled to at least one traveling support leg 327. Preferably, the traveling support beam 325 and the traveling support leg 327 will be made of wood or other furniture suitable material. Further, the traveling support beam 325 and the traveling support leg 327 may be made of lightweight materials and have strengthened couplings, given dynamic nature of the of the traveling base 320.

The traveling support beam 325 may be a load bearing beam sized and dimensioned to extend on the order of half the width of the mattress 400 (e.g., the beam having a length 305 tsb on the order of approximately 32 inches), and of sufficient strength to support the user while maximizing its surface area in contact with the mattress 400 (e.g., a wood beam having a cross section of approximately 1.5 inches in height 301 tsb and 2 inches width 303 tsb). According to one embodiment, the traveling support beam 325 may be a wood beam having a length 305 tsb of 31½″, a height 301 tsb of 1½″, and a width 303 tsb or thickness of 2″, and that is attached to the frame front 322 with threaded fasteners 313 (e.g., screws).

The traveling support leg 327 may extend downward from the traveling support beam 325 to the floor. Preferably, the traveling support member 324 may include two traveling support legs 327, with one traveling support leg 327 located proximate a forward end of the traveling support beam 325 and the other traveling support leg 327 located aft of a mid-length of the traveling support beam 325, thus optimizing load support.

According to a preferred embodiment, the traveling support leg 327 may include a friction reducing interface with the floor. In particular, the traveling support leg 327 may be a wood block that includes a rolling (or sliding) foot 321. For example, and as shown, the wood block may be fixed to the underside of the traveling support beam 325, and the rolling foot 321 may be fixed to the bottom of the wood block. As above, each rolling foot 321 may be configured to provide for free forward-aft travel of the traveling base 320. For example, the rolling foot 321 may be coupled the wood block such that it is free to rotate in the forward-aft direction, but restrained from rotating in any other direction (e.g., having zero yaw). According to one embodiment the wood block of the traveling support leg 327 may have a width 303 t 1 no wider than the traveling support beam 325 (e.g., 1.5 inches), a height 301 t 1 that extends the majority of the distance to the floor (e.g., approximately 4 inches), and a length 305 f 1 on the order of 4 inches, while the friction reducing interface with the floor (e.g., the rolling foot 321) may include a non-rotating bracket coupled to an axle or bearing, and a wheel that extends from the wood block to the floor. Beneficially, this arrangement may provide for reduced cost, as well as greater stability and durability.

According to one embodiment, and as above, the traveling support leg 327 may include a screw sleeve 309 installed into the wood block (see FIG. 4E). In particular, the screw sleeve may be embedded into the wood block using conventional carpentry techniques. Beneficially, this may provide for easier adjustment and decreased wear, as well as interchangeability with the fixed support leg 317.

According to one embodiment, the traveling support member 324 may further include a front reinforcement 329 configured to provide horizontal coupling of the frame front 322 at its forward end with the frame front 322, as well as vertical support to the frame front 322. In particular, the front reinforcement 329 may be a structural member configured to transfer horizontal loading (and optionally, vertical loading) between the frame front 322 and the traveling support beam 325. The structural member may be fixed to the underside of the traveling support beam 325 at its forward end. For example, the front reinforcement 329 may be a wood block, a bracket, or any other appropriate structure.

According to one embodiment, the front reinforcement 329, may be a wood block sized and dimensioned smaller than the wood block of the traveling support leg 327. For example, the front reinforcement 329 may include a wood block fixed to the underside of the traveling support beam 325, having a width no wider than the traveling support beam 325 (e.g., 1.5 inches), a height 301 fr of approximately 3 inches, and a length 305 fr of approximately 2 inches. As mentioned above, the various coupled members may be coupled using any appropriate coupling (e.g., fasteners 313, metal fasteners, wood interlocks, glue, etc.) or combination of coupling techniques.

Returning to FIGS. 3A-3C, according to a preferred embodiment and as shown, the plurality of fixed support members 314 coupled to the frame back 312 may be evenly spaced from left to right across the fixed base 310. Similarly, the plurality of traveling support members 324 coupled to the frame front 322 may be evenly spaced from left to right across the traveling base 320, while interleaved with the plurality of fixed support members 314. In this way, the plurality of traveling support members 324 may be configured to translate in a forward-aft direction relative to the plurality of fixed support members 314, to alternate the convertible platform 300 between its stowed state and its deployed state. Preferably, this interleaving will be tightly toleranced or set with minimal lateral spacing between each member.

According to one embodiment, the plurality of fixed support members 314 and the plurality of traveling support members 324 may, respectively, be spaced apart from each other such that they are interleaved without lateral contact when the convertible platform 300 is its stowed state. In particular, the plurality of fixed support members 314 may be spaced apart from each other by at least the width 303 tsb or thickness of each of the plurality of traveling support members 324, and vis versa. Preferably, the separation distance will provide for a small separation gap when stowed, for example, on the order 10% to 50% of the width (i.e., 5% to 25% on each side). For example, where each fixed support beam 315 of the plurality of fixed support members 314 and each traveling support beam 325 of the plurality of traveling support members 324 has a thickness or width 303 fsb & 303 tsb of 2 inches, the gap or distance with which they are separated may be at least 2.2″ to 3.0″ (providing a lateral clearance gap of 0.1″ to 0.5″ when stowed). Also for example the plurality of fixed support members 314 and the plurality of traveling support members 324, may be spaced apart, respectively, sufficiently to provide a lateral gap of approximately 0.3″ on each side when stowed together. Beneficially, in this way, each of the fixed base 310 and the traveling base 320 may translate forward and aft (relative to each other) without lateral contact yet provide a high degree of distributed mattress support. It is understood that the spacing may vary based on a variety of factors, such as materials chosen, thermal expansion, anticipated accumulation of foreign matter, etc. Further, where the fixed base 310 includes the pair of side frame mounts 316, they may be positioned so as to maintain a similar spacing or lateral gap.

According to one embodiment, the fixed base 310 and the traveling base 320 may be configured to sufficiently distribute its mattress support to be generally unnoticeable to a user when the convertible platform 300 is in its deployed state. In particular and as above, the fixed base 310 and the traveling base 320 may be evenly spaced so as to maintain a lateral gap of approximately 0.3″ between the support members when stowed. To illustrate, the fixed base 310 may include approximately (13) fixed support members 314 and (2) side frame mounts 316 coupled to the frame back 312, where the fixed support members 314 and the side frame mounts 316 are evenly spaced from left to right across the fixed base 310.

Likewise, the traveling base 320 may include approximately (14) traveling support members 324 coupled to the frame front 322, where the traveling support members 324 are evenly spaced from left to right across the traveling base 320. Further, each of the fixed support members 314, the side frame mounts 316, and the traveling support members 324 may be respectively spaced so as to maintain an adjacent spacing of approximately 0.3″ when the convertible platform 300 is in its deployed state, e.g., at the ends that remain interleaved. It is understood many other combinations or number of fixed support members 314 and adjacent spacings are contemplated.

According to one embodiment, the convertible platform 300 may include a base travel stop 330 configured to prevent the traveling base 320 from fully decoupling from the fixed base 310. In particular, the base travel stop 330 may be configured to limit the traveling base 320 from further separating from the fixed base 310 once the convertible platform 300 is in its fully deployed state. According to one embodiment, the base travel stop 330 may include a rider 332 affixed to the traveling base 320 and a front stop 334 affixed to the fixed base 310, where the rider 332 is configured to freely to move forward with the traveling base 320 until reaching the front stop 334, the point of which delimits the fully deployed state of the convertible platform 300.

According to one embodiment, the rider 332 may be affixed to a plurality of, or all of, the traveling support members 324, and be structured to couple them together, providing for more coordinated translation. Similarly, according to one embodiment, the front stop 334 may be affixed to a plurality of or all of the fixed support members 314 (and/or the side frame mounts 316) and be structured to couple them together, providing for more stable support.

According to one preferable embodiment, and as shown, the rider 332 may include a metal bar attached to the aft end of each of the traveling support members 324, and the front stop 334 may include another metal bar attached to the forward end of each of the fixed support members 314. For example, the rider 332 may be a flat iron bar 66″ long, 3/16″ wide, and ½″ thick, and may be fastened (e.g., screwed) to each the traveling support members 324 proximate its aft edge, respectively. Likewise, the front stop 334 may also be a flat iron bar 66″ long, 3/16″ wide, and ½″ thick, and may be fastened (e.g., screwed) to each of the fixed support members 314 proximate its forward edge, respectively. As above, any conventional fastening method may be employed, for example, here the iron bars are attached to each respective support member with 1 screw, 1 flat washer and 1 pressure washer (crescent spring washer). Further, it should be noted here (and throughout), that while the rider 332 may be shorter than the front stop 334, by making these (and other) components identical (or at least similar), fewer parts may be needed, thus reducing costs and providing for greater interchangeability. Finally, it should be understood that other suitable materials are contemplated, as discussed above.

According to one embodiment, the base travel stop 330 may further include a back stop 336 affixed to the fixed base 310, where the rider 332 is configured to freely to move backward with the traveling base 320 until reaching the back stop 336, the point at which delimits the fully stowed state of the convertible platform 300. Beneficially, the base travel stop 330 may prevent the traveling base 320 from “bottoming out” into the body of the fixed base 310, potentially weakening or even damaging the couple between the various components of both the fixed base 310 and the traveling base 320.

According to one embodiment, the back stop 336 may be affixed to a plurality of or all of the fixed support members 314 (and/or the side frame mounts 316), and be positioned so as to prevent the aft end of traveling support members 324 from contacting the frame back 312 of the fixed base 310. For example, and as shown, the back stop 336 may include a metal bar attached to the aft end of each of the fixed support members 314 (and/or the side frame mounts 316). Preferably, the rider 332 may be a flat iron bar 66″ long, 3/16″ wide, and ½″ thick, and may be fastened (e.g., screwed) to each the fixed support members 314 proximate its aft edge, respectively. As above, any conventional fastening method may be employed, for example, here the iron bars are attached with 1 screw, 1 flat washer and 1 pressure washer (crescent spring washer).

FIG. 6A is perspective view of a sofa-bed in its stowed state, showing its mattress removed, according to one embodiment of the present disclosure. FIG. 6B is schematic diagram of the sofa-bed of FIG. 3A, showing a top view of the sofa-bed in a stowed state, according to one embodiment of the present disclosure. As shown, the convertible platform 300 may further include a frame shield 340. In particular, the frame shield may be configured to cover one or more portions of the convertible platform 300 from view and/or from contact with the mattress 400 (FIG. 1B) and/or the seating cushions 500 (FIG. 1A). For example, the frame shield 340 may be a planar material affixed to at least one of the fixed base 310 and the traveling base 320 and positioned between the convertible platform 300 and the mattress 400 and/or the seating cushions 500. Preferably, the frame shield 340 may be a black cloth (commonly used in furniture to cover frame areas) attached to the fixed base 310 via any conventional coupling (e.g., mechanical fasteners, hook and latch fasteners, adhesives, staples, and the like). Beneficially, the frame shield 340 may protect softer materials such as the mattress 400 and/or the seating cushions 500 from contact (and potentially damage or wear) from the convertible platform 300, as well as being aesthetically pleasing.

The disclosure has been sufficiently described so that a person of ordinary skill in the art can reproduce and obtain the results mentioned in the present disclosure. However, any skilled person in the field of the art of the present disclosure may be able to make modifications not described in the present application. Notwithstanding, if these modifications require a structure or manufacturing process not described in the present disclosure, the modifications should be understood to be within the scope of the claimed subject matter. 

1. A sofa-bed convertible between a bed configuration when in a deployed state and a sofa configuration when in a stowed state, the sofa-bed comprising: a mattress; a sofa frame having a back base, a front base, a left side, and a right side; a fixed base affixed to the sofa frame, the fixed base including a plurality of fixed support members distributed between the left and right sides of the sofa frame, each of the plurality of fixed support members including a fixed support beam and at least one fixed support leg, said fixed support beam configured to support at least a portion of the mattress, said at least one fixed support leg coupled to and extending downward from said fixed support beam, said at least one fixed support leg configured to interface with a floor and support said fixed support beam; and a traveling base dynamically coupled to the fixed base so as to be manually moveable between a stowed position and a deployed position relative to the fixed base, the traveling base including a plurality of traveling support members distributed between the left and right sides of the sofa frame and interleaved with the plurality of fixed support members, each of the plurality of traveling support members including a traveling support beam and at least one traveling support leg, said traveling support beam configured to support at least another portion of the mattress, said at least one traveling support leg coupled to and extending downward from said traveling support beam, said at least one traveling support leg configured to interface with the floor and support said traveling support beam.
 2. The sofa-bed of claim 1, wherein the fixed base further includes a frame back affixed to the sofa frame, and each of the plurality of fixed support members are fixed to the frame back; and wherein the traveling base further includes a frame front configured for a user to manually move the traveling base between the stowed position and the deployed position, and each of the plurality of traveling support members are fixed to the frame front.
 3. The sofa-bed of claim 2, wherein the fixed base further includes a left frame side mount affixed to the left side of the sofa frame, and a right frame side mount affixed to the right side of the sofa frame; and wherein the left frame side mount and right frame side mount are each fixed to the frame back.
 4. The sofa-bed of claim 1, further comprising a base travel stop affixed to the fixed base, the base travel stop configured to limit forward movement of the traveling base beyond its deployed position.
 5. The sofa-bed of claim 4, wherein the base travel stop includes a rider affixed to the traveling base, and further includes a front stop and a back stop affixed to the fixed base positioned in front of and behind the rider, respectively, the front stop configured to limit forward movement of the traveling base beyond its deployed position, the back stop configured to limit backward movement of the traveling base beyond its stowed position.
 6. The sofa-bed of claim 5, wherein the fixed base and the traveling base are sized and dimensioned to provide a cushion seating area having a cushion depth of in the range of 30 to 45 inches when in the sofa configuration in the stowed state; and wherein the base travel stop is further configured such that the rider can travel an extension distance in the range of 20 to 30 inches from the stowed state to the deployed state in the bed configuration.
 7. The sofa-bed of claim 1, wherein each traveling support leg includes a rolling foot configured to roll on the floor while supporting its respective traveling support beam.
 8. The sofa-bed of claim 1, wherein each fixed support leg includes an adjustable foot configured to manually vary in height and to support its respective fixed support beam.
 9. The sofa-bed of claim 1, wherein the fixed base and the traveling base are sized and dimensioned to support a standard sofa seating area of between 70-90 inches length by 30-45 inches depth when in the stowed position, and a standard full size mattress when in the deployed position.
 10. The sofa-bed of claim 1, wherein the mattress includes a first portion and a second portion stacked on top of the first portion, each having substantially a same length and width.
 11. The sofa-bed of claim 10, wherein a front of the first portion of the mattress is attached to a back of the second portion of the mattress by at least one flexible strap.
 12. The sofa-bed of claim 1, wherein the mattress includes a first portion, and a second portion and a third portion stacked on top of the first portion, the second portion and the third portion together having substantially a same length and width as the first portion.
 13. The sofa-bed of claim 1, wherein the mattress is configured to fold on itself such that, when folded, it has standard seating area of between 70-90 inches length by 30-45 inches depth, and has a standard full size mattress area when unfolded.
 14. The sofa-bed of claim 1, further comprising a base travel stop affixed to the fixed base, the base travel stop configured to limit forward movement of the traveling base beyond its deployed position; and wherein the fixed base further includes a frame back affixed to the sofa frame, and each of the plurality of fixed support members are fixed to the frame back; wherein the traveling base further includes a frame front configured for a user to manually move the traveling base between the stowed position and the deployed position, and each of the plurality of traveling support members are fixed to the frame front; wherein the fixed base further includes a left frame side mount affixed to the left side of the sofa frame, and a right frame side mount affixed to the right side of the sofa frame; wherein the left frame side mount and right frame side mount are each fixed to the frame back; wherein the base travel stop includes a rider affixed to the traveling base, and further includes a front stop and a back stop affixed to the fixed base positioned in front of and behind the rider, respectively, the front stop configured to limit forward movement of the traveling base beyond its deployed position, the back stop configured to limit backward movement of the traveling base beyond its stowed position; wherein the fixed base and the traveling base are sized and dimensioned to provide a cushion seating area having a cushion depth of in the range of 30 to 45 inches when in the sofa configuration in the stowed state; and wherein the base travel stop is further configured such that the rider can travel an extension distance in the range of 20 to 30 inches from the stowed state to the deployed state in the bed configuration; wherein each traveling support leg includes a rolling foot configured to roll on the floor while supporting its respective traveling support beam; wherein each fixed support leg includes an adjustable foot configured to manually vary in height and to support its respective fixed support beam; wherein the fixed base and the traveling base are sized and dimensioned to support a standard sofa seating area of between 70-90 inches length by 30-45 inches depth when in the stowed position, and a standard full size mattress when in the deployed position; wherein the mattress includes a first portion and a second portion stacked on top of the first portion, each having substantially a same length and width; and wherein a front of the first portion of the mattress is attached to a back of the second portion of the mattress by at least one flexible strap.
 15. A convertible platform for a sofa-bed, the convertible platform having a deployed state corresponding to the sofa-bed in a bed configuration and having a stowed state corresponding to the sofa-bed in a sofa configuration, the convertible platform also having a front, a back, a left side, and a right side all corresponding to the sofa-bed in the sofa configuration, the convertible platform comprising: a fixed base including a frame back and a plurality of fixed support members distributed between the left and right sides of the convertible platform and fixed to the frame back, each of the plurality of fixed support members including a fixed support beam and at least one fixed support leg, said fixed support beam configured to support at least a portion of the mattress, said at least one fixed support leg coupled to and extending downward from said fixed support beam, said at least one fixed support leg configured to interface with a floor and support said fixed support beam; and a traveling base dynamically coupled to the fixed base so as to be manually moveable between a stowed position and a deployed position relative to the fixed base, the traveling base including a frame front and a plurality of traveling support members distributed between the left and right sides of the sofa frame, interleaved with the plurality of fixed support members, and fixed to the frame front, the frame front configured for a user to manually move the traveling base between the stowed position and the deployed position, each of the plurality of traveling support members including a traveling support beam and at least one traveling support leg, said traveling support beam configured to support at least another portion of the mattress, said at least one traveling support leg coupled to and extending downward from said traveling support beam, said at least one traveling support leg configured to interface with the floor and support said traveling support beam.
 16. The sofa-bed of claim 14, further comprising a base travel stop affixed to the fixed base, the base travel stop configured to limit forward movement of the traveling base beyond its deployed position; and wherein the base travel stop includes a rider affixed to the traveling base, and further includes a front stop and a back stop affixed to the fixed base positioned in front of and behind the rider, respectively, the front stop configured to limit forward movement of the traveling base beyond its deployed position, the back stop configured to limit backward movement of the traveling base beyond its stowed position.
 17. The sofa-bed of claim 16, wherein the fixed base and the traveling base are sized and dimensioned to provide a cushion seating area having a cushion depth of in the range of 30 to 45 inches when in the stowed state corresponding to the sofa-bed in the sofa configuration; and wherein the base travel stop is further configured such that the rider can travel an extension distance in the range of 20 to 30 inches from said stowed state to the deployed state corresponding to the sofa-bed in a bed configuration. wherein the fixed base and the traveling base are sized and dimensioned to support a standard sofa seating area of between 70-90 inches length by 30-45 inches depth when in the stowed position, and a standard full size mattress when in the deployed position.
 18. The sofa-bed of claim 14, wherein each traveling support leg includes a rolling foot configured to roll on the floor while supporting its respective traveling support beam; and wherein each fixed support leg includes an adjustable foot configured to manually vary in height and to support its respective fixed support beam.
 19. A method for converting a lift out sofa-bed into a slide out sofa-bed that is convertible between a bed configuration when in a deployed state and a sofa configuration when in a stowed state, the method comprising: providing a lift out sofa-bed including a sofa frame, a lift out bed frame mechanism coupled to the sofa frame, and a first mattress having a first standard size, the sofa frame having a back base, a front base, a left side, and a right side coupled together, the lift out bed frame mechanism including a convertible mechanism that is made of a metal framework that at least partially lifts up and out of the sofa frame to switch the conventional lift out sofa-bed from a conventional sofa configuration to a conventional bed configuration, and the mattress configured to rest flat on the lift out bed frame mechanism when in the conventional bed configuration; removing the lift out bed frame mechanism from the lift out sofa-bed; separating the front base from the left side and the right side of the sofa frame; providing a convertible platform having a deployed state corresponding to the slide out sofa-bed in the bed configuration and having a stowed state corresponding to the slide out sofa-bed in the sofa configuration, the convertible platform also having a front, a back, a left side, and a right side all corresponding to the slide out sofa-bed in the sofa configuration, the convertible platform including: a fixed base including a frame back and a plurality of fixed support members distributed between the left and right sides of the convertible platform and fixed to the frame back, each of the plurality of fixed support members including a fixed support beam and at least one fixed support leg, said fixed support beam configured to support at least a portion of the mattress, said at least one fixed support leg coupled to and extending downward from said fixed support beam, said at least one fixed support leg configured to interface with a floor and support said fixed support beam; and a traveling base dynamically coupled to the fixed base so as to be manually moveable between a stowed position and a deployed position relative to the fixed base, the traveling base including a frame front and a plurality of traveling support members distributed between the left and right sides of the sofa frame, interleaved with the plurality of fixed support members, and fixed to the frame front, the frame front configured for a user to manually move the traveling base between the stowed position and the deployed position, each of the plurality of traveling support members including a traveling support beam and at least one traveling support leg, said traveling support beam configured to support at least another portion of the mattress, said at least one traveling support leg coupled to and extending downward from said traveling support beam, said at least one traveling support leg configured to interface with the floor and support said traveling support beam. attaching the front base of the sofa frame to the frame front of the traveling base such that the user can manually move the traveling base between the stowed position and the deployed position by sliding out said front base; and attaching the back base, the left side, and the right side of the sofa frame to fixed base such that they remain in a fixed position relative to the fixed base when the traveling base slides forward and backward between the between the stowed position and the deployed position.
 20. The method of claim 1, further comprising replacing the first mattress with a second mattress having a second mattress size, said second mattress size being other than the first mattress size; and wherein the lift out bed frame mechanism of the lift out sofa-bed is configured to lay out the first mattress in a first orientation when in the conventional bed configuration; wherein the convertible platform of the slide out sofa-bed is configured to lay out the second mattress in a second orientation when in the bed configuration, said second orientation being perpendicular to the said first orientation. 